Sorry for the late response. sometimes it's a pain, because the pipes are stuck to the headers. this involves banging on them to get them off. as for the Harley mufflers, are they certain models of Harleys? Thanks
Call me crazy.....tried this and found it works. Put anti seize on the header pipe. Didn't get wild with it but a light coating. Then the next time muffler had to be removed it slipped off rather easily with a twist or two. And it was nice to slip it back on with the gasket staying in place.